Smoking pipe



Aug. 19, 1941. c. s. CARLBERG 2,252,880

SMOKING PIPE Filedl May 22, 1940 Patented Aug. 19, 1941 UNITED STATES PATENT OFFICE SMOKING PIPE Carl S. Carlberg, Mound, Minn.

l Application May 22, 1940, Serial No. 336,609

Claims.

i This invention relates to smoking pipes and particularly to such pipes having therein ventilating and moisture diverting means.

` An ordinary smoking pipe may become considerably heated through use thereof and also is` `diflicult to clean and permits passage of moisture into the mouth of the user.

An object of my invention is to provide a smoking pipe including in its structure means producing a Ventilating and cooling effect and wherein such means is substantially concealed `within the structure ofthe pipe.

`expended in construction thereof.

'1 A further `object is to provide such a pipe of light, compact, simple, rugged and inexpensive construction.

These and other objectsand advantages of the f invention will more fully appear from the following description made in connection with the accompanying drawing, wherein like reference characters refer to the same parts throughout the views, and, in which:

Fig, 1 is a longitudinal cross sectional View of an embodimentof my invention drawn to a somewhat, enlarged scale;

Fig. 2 is a top View; Y Fig. 3 is a vertical sectionalview taken along the line 3 3 of Fig. 1, as indicated by the arrows;`

and

Fig.` 4 is a top view of the mouthpiece of my pipe and the parts which are permanently attached thereto.

Referring` to the drawing the embodiment of myinvention shown therein includes` a bowl member B, a stem S, and a mouthpiece M disposed in the same general manner as the corresponding parts of the usual type of smoking pipe.

The, bowl B may be constructed of any suitable material and isso formedas to have aninterior space `lwherein tobacco` may be placed. The bowl` B of.. circular cross sectional shape throughout and it may be made by a turning operation on a lathe. i The lower portion 5 of the bowl B is relatively thick vertically and preferably is made to a slightly larger diameter than the upper part 6 of the bowl B. The lower portion 5 of the bowl B is provided with a diametric aperture I which is open at both ends thereof and which in its medial portion opens into the lowermost part of the interior space 4 of the bowl.

The stem S includes an outer shell 8 which is tubular in form and may be of any suitable material. The right-hand end of the shell 8 is in abutment with a point on the periphery of the lower portion 5 of the bowl B whereat one end of the diametrical aperture 'I opens. The interior diameter ofthe shell 8 is the same as the diameter ofthe diametric aperture I in the lower portion 5 of the bowlB. The right-hand end of the shell 8 is shaped to closelyt the contour 0f the periphery of `the lower portion 5 of the bowl B, and the `axis of the shell 8 is common with the axis of the diametric aperture 'I.

To firmly join together the bowl B and the shell 8 of the stem S and also-to form a lining for the shell 8 and -the diametrically apertured portion of the bowl B I provide a tube 9 `extending throughout the length of the shell 8 and the diametrical aperture,` as shown, and preferably formed of relatively strong material such as, for example, metal. 'I'he upper side of the tubular lining 9 is Vprovided with an aperture I0 at the axis of the bowl B for establishing communication between the interior space 4 of the bowl B and the interior space of the tubular lining 9.

The mouthpiece M may be of the same general external shape as the mouthpiece of the usual type of smoking pipe, andmay be made of any suitable material. The forward end of the mouthpiece M is provided with a forwardly opening recess I0 in which the rear end of a plug II is secured by suitable means such as cement or the like. The plug II extends a moderate distance forwardly of the forward end ofthe mouthpiece M and its forwardly projecting portion has -a diameter suitable for a frictional fitvin the tubular lining 9 of the Stem S. 'I'he plug II in its forward portionis normally disposed within the rear portion of the liner` 9,V as shown. The forward 'end of the plug II is provided with a forwardly opening cylindrical recess I2 of sub` stantially less diameter than the internal diameter of the tubular liner =9. A tubular element `I3 having an .external diameter less than the internal diameter of the liner 9 and suitable` for a snug t in the recess I2 of the plug II is inserted at its rearward end intherecess I2. The rear end of the tubular element I3 is secured `to the plug II by suitable means such as solder or the'like.

las solder and extends forwardly to the forward end of the diametrical aperture I and tubular liner 9.

The space I between the external periphery of the tubular element I3 and the internal periphery of the tubular lining 9 constitutes a longitudinal passage in the stem S communicating at its for- Ward end with the interior space 4 of the bowl B through the aperture IIJ. Y

The mouthpiece M is provided with the usual longitudinal aperture or passage Iiiand the plug II is provided with a passage il communicating with the passage I6 and extending axially a short distance forwardly and then inclined upwardly to a point at the upper surface cf the plug I L yFrom the point from which the passage I 'I opens at the upper Vsurface of the plug II a groove I9 in the upper portion of theplug II extends forwardly to the forward end of the plug I I to communicate with the rear end of the passage I5. Thus the pipe is provided with a smoke passage including `the aperture I9, the. passage I5,Vthe groove I9,

v I9, 2,9, 2I and 22 would accomplish my purpose I prefer to have in my pipe more than one such series of apertures and have shownthree such series of apertures in the drawings, Vas .best seen-inFig. 3. These apertures are so located as` to not intersect or communicate with the groove I8, and form openings orports from the interior ofthe tubular element I3 tothe atmosphere.` It should be apparent that the interior of the tubular element I3 constitutesl'a longitudinal passage in the stern SY open to the atmosphere at both ends. This passage formed ,by the tubular Vr'nember I4, theftubular element I3 and the apertures I9, 20, 2l 4andZZfunctions apparent that the exterior of the tubular element I3 may be very quickly and easily cleaned by simply wiping off the same. The interior of the tubular element I3 and the apertures I9, 20, 2| and 22 are subjected to only passage of air therethrough rather than smoke and moisture, and, therefore, should remain relatively clean and should require cleaning only at long intervals if at all.

The space I5 between the tubular element I3 and the tubular liner 9 in addition to constituting a smoke passage also functions as a moisture trap for gathering moisture and preventt ing the same from passing through the groove I8, passage I'I and passage I5 to the mouth of the user of the pipe. With the parts shown in Fig. 4 removed from the remainder of the pipe,

Y it should be seen that the interior of the tubular liner. 9 may be quickly and easily cleaned by simply passing .a cloth or other suitable means Y through the interior space of the-tubular liner 9.

It will, of ooursebe understood that various changes may beV made in theform, details, arrangement and proportions ofy the various parts without departing from the scope ofV my invention.

What is claimed is: Y

1` A smoking pipeA comprising, abowl member equipped with a stem having a longitudinally apertured mouthpiece",associated with its free end, Vsaid .stem and thebase of said bowl member havingk a continuous4 relatively large longitudinal bore extending through the front of said bowl member, a tubular element disposed in said bore and having a smaller diameter than the same so` as to 'divide the same into a pair of concentric passages, 4and structures formed on as a Ventilating passagewhich is` closely associated with the smoke passage l5 in regardto t transfer of heat from the smoke passage. I5 to the interior` passage of the tubular element I3. The tubular element I3, therefore, constitutes a heatexchanger for cooling of both the pipe bowl B and stem S and also cooling of theV smoke traveling from the bowl BA into the `mouthpiece M; Since asmokerY in using apiperarely ever holds the pipe so that it is exactly horizontal the above mentionedV Ventilating passage will practically always be; inclined sufficiently` so that stack` action willoccur therein whereby `there will kbe a flow of air," therethrough by convection.

` tionallyheld in the tubular liner 9. The re- Y movable parts mentioned above and constituting 4a .unit are shown ini Figa, and it should be therespective ends of .said tublar yelement with diameters closelyitting in said bore, said structures -beingarranged and so apertured as to place respective ends of one of said passages in communication with the respective interior spaces of said memberv and said mouthpiece,'and said structures and said member and stem being so arranged and aperturedl as to place both ends of the remaining one of said passages in communication with the atmosphere atthe'front of said bowl member and at the rear of said stem re- VlongitudinalV bore extending therethrough and being extended through said member to open into the'atmosphe're at'` the side thereof opposite said stem, said member having therein an aperture'V communicating between `its 'interior space and said bore, anda tubular element carried by said mouthpiece and extending throughout the length' of said bore,'the extreme end portions of said element being in closely fitting relation with said bore and the medial portion being of reduced cross-sectional dimension to provide a passage between itself and the interior periphery of said stem extending from said aperture to a point adjacent said mouthpiece, the end of the interior of said element at the outer side of said member being open to the atmosphere and the other end being closed, said other end having a port formed therein communicating between said passage and the interior space of said mouthpiece, and said tubular element and said stem having respective registering apertures formed therein communicating between the interior of said tubular element and the atmosphere.

4. A smoking pipe comprising, a bowl having a relatively thick bottom wall containing a diametrical aperture, a pipestem having therein a longitudinal bore of the same diameter as said aperture, said pipestem being placed in radial and abutting relation with said bowl with said aperture and said bore axially aligned, a tubular member extending through the length of said bore vand said aperture in snugly tting relation therewith to firmly connect said bowl to said stem, a longitudinally apertured mouthpiece carried by the `free end of said stem, said bowl and said tubular member having registering apertures tointer-connect the `interior spaces thereof, and

a tubular element carried by said mouthpiece diameter to provide a passage between itself and said member extending from said apertures to a point adjacent said mouthpiece, the end oi the interior of said element at the outer side of said bowl being open to the atmosphere and the other end being closed, said other end having a port formed therein communicating between said passage and the interior space of said mouthpiece, and said tubular element, said tubular element and said stem having respective registering apertures therein adjacent said mouthpiece communicating between the interior of said tubular element and the atmosphere.

5. A smoking pipe comprising, a bowl member equipped with a longitudinally apertured mouthpiece associated with `the free end of said stem, said bowl member and stem having a continuous passage extending below the `tobacco-receiving cavity of said bowl member and extending longitudinally of said stem from the front end of said bowl to the outer end of said stem, a longitudinally disposed member in said passage dividing the same into a smoke duct having communication with the bottom of the tobacco-holding cavity and an air duct having communication with the atmosphere at the forward end of said bowl, a closure member between the forward end of said longitudinally disposed member and said passage for preventing entrance of air into said smoke duct, a closure member associated with said stem for closing the rear end of said smoke duct, means associated with said stem providing a port communicating with the interior of said stem and with the outer end of said smoke duct, and means forming a passage connected withv the outer end of said air duct and communicating with the atmosphere adjacent the rear of said stem.

CARL S. CARLBERG. 

